12222212100102 has 128 divisors (see below), whose sum is σ = 28707250176000. Its totient is φ = 3843822016800.

The previous prime is 12222212100079. The next prime is 12222212100113. The reversal of 12222212100102 is 20100121222221.

It is a happy number.

12222212100102 is a `hidden beast` number, since 1 + 222 + 221 + 210 + 0 + 10 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1640341477 + ... + 1640348927.

It is an arithmetic number, because the mean of its divisors is an integer number (224275392000).

Almost surely, 2^{12222212100102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12222212100102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14353625088000).

12222212100102 is an abundant number, since it is smaller than the sum of its proper divisors (16485038075898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12222212100102 is a wasteful number, since it uses less digits than its factorization.

12222212100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13823 (or 13817 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12222212100102 its reverse (20100121222221), we get a palindrome (32322333322323).

The spelling of 12222212100102 in words is "twelve trillion, two hundred twenty-two billion, two hundred twelve million, one hundred thousand, one hundred two".